Quote from rufus_4000:
From CME:
http://www.cmegroup.com/tools-information/lookups/advisories/electronic-trading/20090525.html
Look under the section for market depth.
Quote from jeb9999:
TWS (895.3) still shows 5 deep for ES, NQ AND EMD. It shows 10 deep for YM, ZN and other 10 deep contracts.
I opened a ticket on ES and NQ market depth on Monday and the ticket was just assigned to a rep today. Usual wait for IB to admit there is a problem and then maybe fix it.